title: Vitamin and mineral supplement adherence in pediatric inflammatory bowel disease.
abstract: OBJECTIVE
  Although vitamin and mineral supplementation for nutritional deficiencies is a common component of pediatric inflammatory bowel disease (IBD) management, little is known about supplement adherence in this group. This study described adherence to multivitamin, iron, and calcium supplements among 49 youth aged 11-18 years with IBD. Additionally, the study examined relationships between supplement knowledge and adherence.
  
  
  METHODS
  Participants completed supplement adherence ratings using a validated interview. Knowledge was assessed using an open-ended question from the same interview; responses were later categorized into 1 of 3 knowledge sophistication categories (low, moderate, or high).
  
  
  RESULTS
  Mean adherence rates ranged from 32 to 44% across supplements. Youth who did not know the reason for supplementation (approximately 25% of the sample) displayed substantially poorer adherence than did those with moderate or high levels of knowledge, across all supplements.
  
  
  CONCLUSIONS
  Findings highlight the importance of evaluating and addressing nonadherence to vitamin and mineral supplements in youth with pediatric IBD.
authors.affiliation: Department of Psychology, Rosalind Franklin University of Medicine and Science, 3333 Green Bay Road, North Chicago, IL 60064, USA. rachel.greenley@rosalindfranklin.edu
authors.forename: Rachel Neff
authors.initials: RN
authors.lastname: Greenley
authors.forename: Kaila A
authors.initials: KA
authors.lastname: Stephens
authors.forename: Eve U
authors.initials: EU
authors.lastname: Nguyen
authors.forename: Jennifer Hauser
authors.initials: JH
authors.lastname: Kunz
authors.forename: Lynn
authors.initials: L
authors.lastname: Janas
authors.forename: Praveen
authors.initials: P
authors.lastname: Goday
authors.forename: Jennifer Verrill
authors.initials: JV
authors.lastname: Schurman
mesh_terms: D000293:Adolescent; D002136:Calcium, Dietary / Q000627:therapeutic use*; D002648:Child; D019587:Dietary Supplements / Q000706:statistics & numerical data; D005260:Female; D006801:Humans; D015212:Inflammatory Bowel Diseases / Q000188:drug therapy*; D007501:Iron / Q000627:therapeutic use*; D008297:Male; D055118:Medication Adherence / Q000523:psychology*; D014815:Vitamins / Q000627:therapeutic use*
chemical_list: D002136:Calcium, Dietary; D014815:Vitamins; D007501:Iron
keywords: adherence; adolescence; chronic illness; gastroenterology; inflammatory bowel disease